Film roll vertical stacking device

Abstract

The present application relates to the technical field of film roll packaging, and discloses a vertical film roll stacking device. The vertical film roll stacking device comprises two symmetrical vertical frames, a horizontal moving carriage arranged horizontally between the two vertical frames, front and rear driving assemblies, a vertical moving carriage, left and right driving assemblies, a lifter and a stacking gripper. A stacking area is formed between the two vertical frames, and the stacking area comprises two rows of pallet placing areas and a passageway between the two rows of pallet placing areas. A near area in the passageway is detected by a first safety light barrier to determine whether there is an object. When a pedestrian intrudes into the passageway, an object placed in the passageway is not cleaned in time, the stacking gripper is loosened during the carrying process, and the film roll falls to the ground, etc., the first safety light barrier feeds back a signal to a film roll packaging control system, and the film roll packaging control system immediately controls the vertical film roll stacking device to stop to prevent the stacking gripper from colliding due to continuous movement.

Description

Technical Field

[0001] This invention relates to the field of film roll packaging technology, and in particular to a vertical film roll palletizing device. Background Technology

[0002] To ensure proper dust protection during storage and to prevent damage to the film rolls during transportation, the film rolls typically require external packaging before shipment. After packaging, the film rolls are stood upright and stacked on pallets for storage. Once the set quantity of film rolls on the pallets is reached, a forklift is used to lift the pallets onto the truck for shipment.

[0003] To improve automated production, the company currently uses a palletizing device for vertical palletizing of film rolls. The palletizing device typically uses two rows of pallets, forming an aisle between them. The palletizing gripper picks up the film roll and moves it laterally through the aisle. When the film roll reaches a designated pallet, it is placed on that pallet. However, during this lateral movement, the gripper may lose its gripping force, causing the film roll to fall onto the aisle floor. This not only results in the failed placement of the film roll but also risks interfering with the gripper's subsequent movement and handling of other film rolls, making it difficult for workers to notice and address the issue promptly. Furthermore, if pedestrians or objects are present in the aisle during normal operation, there is a possibility of collision with the palletizing gripper, causing damage.

[0004] It is evident that existing technologies still need improvement and enhancement. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a film roll vertical palletizing device, which aims to detect foreign objects in the aisles of the palletizing area to prevent them from affecting the normal operation of the palletizing gripper.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A film roll vertical palletizing device includes two symmetrically arranged uprights, a transverse slide that spans the two uprights and is slidably mounted on the two uprights, a front-rear drive assembly for driving the transverse slide to move back and forth, a longitudinal slide that is slidably mounted on the transverse slide, a left-right drive assembly for driving the longitudinal slide to move left and right, a lifter located below the longitudinal slide, and a palletizing gripper that is moved up and down by the lifter. A palletizing area is formed between the two uprights, including two rows of pallet placement areas and an aisle between the two rows of pallet placement areas. Both the pallet placement areas and the aisle extend laterally. Each row of pallet placement areas contains multiple pallets arranged at lateral intervals. The near-ground area within the aisle is detected by a first safety light curtain to check for the presence of items. The palletizing gripper is used to grasp the film roll and place it vertically on the pallet. An alarm is provided on the uprights. The alarm, the first safety light curtain, the front-rear drive assembly, the left-right drive assembly, the lifter, and the palletizing gripper are all controlled by a film roll packaging control system.

[0008] As a further improvement to the above technical solution, the legs of the two uprights are connected by several longitudinally extending support rods, the generator of the first safety light curtain is set on one of the support rods, and the receiver of the first safety light curtain is set on the support rod adjacent to that support rod.

[0009] As a further improvement to the above technical solution, the support rod is provided with three rods, namely a front support rod, a middle support rod, and a rear support rod. The area between the front support rod and the middle support rod forms the front stacking area, and the area between the rear support rod and the middle support rod forms the rear stacking area. The front support rod and the middle support rod are provided with a first safety light curtain for detecting the passageway in the front stacking area, and the rear support rod and the middle support rod are provided with a first safety light curtain for detecting the passageway in the rear stacking area.

[0010] As a further improvement to the above technical solution, each of the support legs of the upright is provided with a second safety light curtain for detecting whether a pedestrian has entered the palletizing area.

[0011] As a further improvement to the above technical solution, the crossbeam of the upright frame is provided with a first guide rail extending laterally and a first rack located beside the first guide rail. The bottom of the transverse slide is slidably connected to the first guide rail via a first slider. The front and rear drive assembly includes a first reducer set on the transverse slide, a drive shaft driven by the first reducer, a first gear sleeved on the drive shaft, and a bearing seat on the transverse slide to support the drive shaft. The first gear meshes with the first rack for transmission.

[0012] As a further improvement to the above technical solution, the transverse slide is provided with a longitudinally extending second guide rail and a second rack located beside the second guide rail, and the bottom of the longitudinal slide is slidably connected to the second guide rail through a second slider; the left and right drive components include a second reducer provided on the longitudinal slide and a second gear provided on the output end of the second reducer, and the second rack and the second gear mesh and drive each other.

[0013] As a further improvement to the above technical solution, the lifting device includes a vertical support, a lead screw rotatably mounted on the vertical support, a lead screw nut sleeved on the lead screw, a third guide rail vertically mounted on the vertical support, and a third reducer driven and connected to the lead screw. The lead screw nut is fixedly connected to the palletizing gripper, and the back of the palletizing gripper is connected to the third guide rail via a third slider.

[0014] As a further improvement to the above technical solution, the palletizing gripper includes a base, an outer sleeve mounted on the base, an inner sleeve penetrating the outer sleeve, a gripping sleeve fixedly connected to the bottom end of the inner sleeve, a guide plug connected to the bottom end of the gripping sleeve, a cylinder bracket fixedly connected to the top of the inner sleeve, and a cylinder mounted on the cylinder bracket. The cylinder bracket is located above the outer sleeve. A tensioning push rod is inserted into the inner sleeve and extends into the gripping sleeve. The piston rod end of the cylinder is drivenly connected to the top end of the tensioning push rod. The side wall of the gripping sleeve has at least two clamping arm holes arranged in a circumferential array. The top of the guide plug is fixed with a clamping arm guide block located inside the gripping sleeve. Each clamping arm hole has a tensioning clamping arm. Each tensioning clamping arm is drivenly connected to the tensioning push rod, and each tensioning clamping arm extends out of the clamping arm hole or retracts into the gripping sleeve under the guidance of the clamping arm guide block.

[0015] As a further improvement to the above technical solution, the piston rod end of the cylinder extends downward and is connected to the top of the tensioning push rod through a joint, so that the cylinder and the tensioning push rod are coaxial; the cylinder support includes a horizontally arranged upper plate and a lower plate, and a support column connecting the upper plate and the lower plate, the cylinder is disposed on the top of the upper plate, and the joint is located between the upper plate and the lower plate.

[0016] As a further improvement to the above technical solution, the base is also provided with a rotary drive assembly for driving the outer sleeve to rotate. The rotary drive assembly includes a motor bracket fixed on the base, a motor mounted on the motor bracket, a drive gear fixed on the output end of the motor, and a load-bearing gear rotatably connected to the base. The drive gear meshes with the load-bearing gear through a transition gear. The load-bearing gear is coaxial with the outer sleeve and the outer sleeve is fixed above the load-bearing gear.

[0017] The beneficial effects of this invention are as follows: During the operation of the film roll vertical palletizing device, if a pedestrian enters the aisle, objects are placed in the aisle and not cleaned up in time, or the palletizing gripper releases the film roll during handling, causing the film roll to fall to the ground, the light emitted by the transmitter of the first safety light curtain will be blocked and cannot be received by the receiver of the first safety light curtain. Therefore, the first safety light curtain will feed back a signal to the film roll packaging control system. The film roll packaging control system will immediately control the film roll vertical palletizing device to stop to prevent the palletizing gripper from continuing to move and causing a collision. At the same time, the film roll packaging control system will also control the alarm to sound an alarm, reminding the staff to deal with the problem in time and ensuring the safety of personnel and equipment during the operation. Attached Figure Description

[0018] Figure 1 This is a perspective view of the vertical stacking device for film rolls provided by the present invention.

[0019] Figure 2 This is a top view of the vertical stacking device for film rolls provided by the present invention.

[0020] Figure 3 This is a front view of the film roll vertical stacking device provided by the present invention.

[0021] Figure 4 for Figure 1 A magnified view of a portion of region L in the middle.

[0022] Figure 5 This is a cross-sectional view of the palletizing gripper.

[0023] Key component symbols: 1-Upright frame, 11-Foot support, 12-Crossbeam, 13-Support rod, 2-Transverse slide, 3-Front and rear drive assembly, 31-First guide rail, 32-First reducer, 33-Drive shaft, 34-First gear, 35-Bearing seat, 4-Longitudinal slide, 5-Left and right drive assembly, 51-Second guide rail, 52-Second rack, 53-Second reducer, 6-Lifter, 63-Third guide rail, 64-Third slider, 7-Piling gripper, 71-Base, 721-Outer sleeve, 722-Inner sleeve, 723-Grip sleeve, 7231-Clamping arm hole, 724-Conductor plug, 731-Cylinder support Frame, 7311-Upper plate, 7312-Lower plate, 7313-Support column, 732-Cylinder, 733-Connector, 74-Clamping arm guide block, 75-Tensioning clamping arm, 761-Slide rod, 762-Guide sleeve, 763-Sensor, 77-Tensioning push rod, 78-Rotary drive assembly, 781-Motor bracket, 782-Motor, 783-Drive gear, 784-Bearing gear, 785-Transition gear, 8-Plagging area, 801-Front palletizing area, 802-Rear palletizing area, 81-Pattern placement area, 82-Aisle, 83-Pattern, 91-First safety light curtain, 92-Second safety light curtain, 93-Alarm. Detailed Implementation

[0024] This invention provides a vertical stacking device for film rolls. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this invention and are not intended to limit the scope of protection of this invention.

[0025] In this paper, the X-axis extends forward and backward, i.e., horizontally; the Y-axis extends left and right, i.e., vertically; and the Z-axis extends up and down, i.e., vertically.

[0026] Please see Figures 1-3 This invention provides a film roll vertical palletizing device, comprising two symmetrically arranged uprights 1, a transverse slide 2 spanning the two uprights 1 and slidably mounted on the two uprights 1, a front-rear drive assembly 3 for driving the transverse slide 2 to move back and forth, a longitudinal slide 4 slidably mounted on the transverse slide 2, a left-right drive assembly 5 for driving the longitudinal slide 4 to move left and right, a lifter 6 located below the longitudinal slide 4, and a palletizing gripper 7 that is driven up and down by the lifter 6. A palletizing area 8 is formed between the two uprights 1, and the palletizing area 8 includes two rows of pallet placement areas 81 and a pallet placement area 82. The aisle 82 between 81, the pallet placement area 81 and the aisle 82 both extend laterally, each row of pallet placement area 81 has multiple pallets 83 arranged laterally at intervals, the near-ground area in the aisle 82 is detected by the first safety light curtain 91 to see if there are any items; the palletizing gripper 7 is used to grab the film roll and place the film roll upright on the pallet 83; the stand 1 is equipped with an alarm 93, the alarm 93, the first safety light curtain 91, the front and rear drive assembly 3, the left and right drive assembly 5, the lifter 6 and the palletizing gripper 7 are all controlled by the film roll packaging control system.

[0027] In fact, a flipping machine is installed in front of the upright frame 1. The flipping machine can flip the film rolls that have been packaged and placed horizontally into an upright state, and place the film rolls to be stacked at the film roll gripping point. After the film roll vertical stacking device starts the stacking and handling work, the front and rear drive components 3 and the left and right drive components 5 work together to drive the transverse slide 2 and the longitudinal slide 4 to slide, so that the stacking gripper 7 is moved above the film roll. The lifting device 6 drives the stacking gripper 7 to descend, so that the stacking gripper 7 extends into the paper core of the film roll and tightens the film roll to achieve film roll gripping. The lifting device 6 then raises the stacking gripper 7 again. Then the stacking gripper 7 grabs the film roll and moves laterally through the aisle 82 until the film roll moves to the side of the set tray 83, and then moves longitudinally to the top of the tray 83. The lifting device 6 drives the stacking gripper 7 to descend, and finally stacks the film roll on the tray 83.

[0028] During the operation of the film roll vertical palletizing device, if a pedestrian enters the aisle 82, objects are placed on the aisle 82 and not cleaned up in time, or the palletizing gripper 7 releases the film roll during handling, causing the film roll to fall to the ground, the light emitted by the transmitter of the first safety light curtain 91 will be blocked and cannot be received by the receiver of the first safety light curtain 91. Therefore, the first safety light curtain 91 will feed back a signal to the film roll packaging control system. The film roll packaging control system will immediately control the film roll vertical palletizing device to stop to prevent the palletizing gripper 7 from continuing to move and causing a collision. At the same time, the film roll packaging control system will also control the alarm 93 to sound an alarm to remind the staff to deal with the problem in time and ensure the safety of personnel and equipment during the operation.

[0029] The alarm 93 can specifically be an audible and visual alarm 93, which can immediately attract people's attention by emitting sound and light signals simultaneously, ensuring that warning information is conveyed quickly.

[0030] Specifically, the legs 11 of the two uprights 1 are connected by several longitudinally extending support rods 13. The generator of the first safety light curtain 91 is mounted on one of the support rods 13, and the receiver of the first safety light curtain 91 is mounted on the support rod 13 adjacent to it. This arrangement allows the first safety light curtain 91 to be supported by the support rods 13, and the height of the first safety light curtain 91 can be finely adjusted on the support rods 13, ensuring that the transmitter and receiver of the first safety light curtain 91 form an effective beam detection. Compared to installing the first safety light curtain 91 directly on the ground, this arrangement has the advantages of adjustable position and reduced dust contamination.

[0031] Because the detection length of the first safety light curtain 91 is limited, in order to improve the detection accuracy, the support rod 13 is set to three rods: a front support rod, a middle support rod, and a rear support rod. The area between the front support rod and the middle support rod forms the front stacking area 801, and the area between the rear support rod and the middle support rod forms the rear stacking area 802. The front support rod and the middle support rod are equipped with the first safety light curtain 91 for detecting the passageway 82 in the front stacking area 801, and the rear support rod and the middle support rod are equipped with the first safety light curtain 91 for detecting the passageway 82 in the rear stacking area 802. With this setup, the zones are clearly defined. When palletizing in small batches, only the front palletizing zone 801 is open, meaning that the palletizing gripper 7 only performs palletizing on the pallet 83 of the front palletizing zone 801, which facilitates management and control. When palletizing in large batches, both the front palletizing zone 801 and the rear palletizing zone 802 are open for use, and the palletizing gripper 7 can perform palletizing on the pallet 83 of both the front palletizing zone 801 and the rear palletizing zone 802.

[0032] Understandably, the frontmost part of the front palletizing area 801 is the entrance to the vertical palletizing device for film rolls. A film roll gripping point is set at this location. After the palletizing gripper 7 grabs the film roll at the gripping point, it will move into the palletizing area 8 for palletizing.

[0033] To further ensure the safe operation of the film roll vertical palletizing device, each support leg 11 of the upright frame 1 is equipped with a second safety light curtain 92 for detecting whether a pedestrian has entered the palletizing area 8. When the light emitted by the transmitter of the second safety light curtain 92 is blocked and cannot be received by the receiver of the second safety light curtain 92, it indicates that someone has entered the palletizing area 8 and there is a risk of collision between the person and the moving palletizing gripper 7. Therefore, the second safety light curtain 92 will feed back a signal to the film roll packaging control system, and the film roll packaging control system will immediately control the film roll vertical palletizing device to stop.

[0034] Specifically, the crossbeam 12 of the upright frame 1 is provided with a first guide rail 31 extending laterally and a first rack located beside the first guide rail 31. The bottom of the transverse slide 2 is slidably connected to the first guide rail 31 via a first slider. The front and rear drive assembly 3 includes a first reducer 32 mounted on the transverse slide 2, a drive shaft 33 driven by the first reducer 32, and a first gear 34 sleeved on the drive shaft 33. The transverse slide 2 is provided with a bearing seat 35 for receiving the drive shaft 33. The first gear 34 meshes with the first rack for transmission. Under the forward and reverse drive of the first reducer 32, the drive shaft 33 drives the first gear 34 and the first rack to rotate and cooperate, effectively transmitting power to the transverse slide 2 and achieving precise movement of the transverse slide 2 on the crossbeam 12 of the upright frame 1 under the guidance of the first slider and the first guide rail 31. That is, the transverse slide 2 can drive the palletizing gripper 7 and the film roll to move freely laterally within the palletizing area 8.

[0035] Furthermore, the transverse slide 2 is provided with a longitudinally extending second guide rail 51 and a second rack 52 located beside the second guide rail 51. The bottom of the longitudinal slide 4 is slidably connected to the second guide rail 51 via a second slider. The left and right drive assembly 5 includes a second reducer 53 disposed on the longitudinal slide 4 and a second gear disposed on the output end of the second reducer 53. The second rack 52 and the second gear mesh and drive each other. Under the forward and reverse drive of the second reducer 53, the drive shaft 33 drives the second gear and the second rack 52 to rotate and cooperate, effectively transmitting power to the longitudinal slide 4 and realizing the precise movement of the longitudinal slide 4 on the transverse slide 2 under the guidance of the second slider and the second guide rail 51. That is, the longitudinal slide 4 can drive the palletizing gripper 7 and the film roll to move freely longitudinally within the palletizing area 8.

[0036] Furthermore, the lifting device 6 includes a vertical support, a lead screw rotatably mounted on the vertical support, a lead screw nut sleeved on the lead screw, a third guide rail 63 vertically mounted on the vertical support, and a third reducer driven by the lead screw. The lead screw nut is fixedly connected to the palletizing gripper 7, and the back of the palletizing gripper 7 is connected to the third guide rail 63 via a third slider 64. The third reducer drives the palletizing gripper 7 to move up and down through the transmission of the lead screw and lead screw nut. Due to the high transmission stability of the lead screw structure, the palletizing gripper 7 can move smoothly and accurately to the predetermined position. Of course, the lifting device 6 can adopt a highly integrated linear module.

[0037] The palletizing gripper 7 can move along three axes, not only accurately gripping and placing film rolls, but also moving and avoiding obstacles flexibly within the palletizing area 8, meeting the requirements of automated palletizing.

[0038] For details, please refer to Figure 4 and Figure 5 The palletizing gripper 7 includes a base 71, an outer sleeve 721 mounted on the base 71, an inner sleeve 722 penetrating the outer sleeve 721, a gripping sleeve 723 fixedly connected to the bottom end of the inner sleeve 722, a guide plug 724 connected to the bottom end of the gripping sleeve 723, a cylinder bracket 731 fixedly connected to the top of the inner sleeve 722, and a cylinder 732 mounted on the cylinder bracket 731. The cylinder bracket 731 is located above the outer sleeve 721. A tensioning push rod 77 is inserted into the inner sleeve 722 and extends into the gripping sleeve 723. The piston rod end of the cylinder 732 is driven to be connected to the top end of the tensioning push rod 77; the side wall of the gripping sleeve 723 is provided with at least two clamping arm holes 7231 arranged in a circumferential array; the top of the guide plug 724 is fixed with a clamping arm guide block 74 located inside the gripping sleeve 723; each clamping arm hole 7231 is provided with a tensioning clamping arm 75; each tensioning clamping arm 75 is driven to be connected to the tensioning push rod 77; and each tensioning clamping arm 75 extends out of the clamping arm hole 7231 or retracts back into the gripping sleeve 723 under the guidance of the clamping arm guide block 74.

[0039] Before stacking, the film rolls have been changed from a horizontal to a vertical position by a flipping machine. First, the gripping sleeve 723 of the stacking gripper 7 is aligned downwards with the paper core of the film roll. Then, the stacking gripper 7 is lowered so that the gripping sleeve 723 extends into the paper core of the film roll. Next, the cylinder 732 drives the tensioning push rod 77 to descend vertically. The tensioning push rod 77 drives all the tensioning clamping arms 75 to extend outwards from the clamping arm holes 7231 along the guide slope of the clamping arm guide block 74, thereby clamping the film roll.

[0040] The piston rod end of the cylinder 732 extends downward and is connected to the top of the tensioning push rod 77 via a connector 733, making the cylinder 732 and the tensioning push rod 77 coaxial. The cylinder support 731 includes a horizontally arranged upper plate 7311 and a lower plate 7312, and a support column 7313 connecting the upper plate 7311 and the lower plate 7312. The cylinder 732 is located at the top of the upper plate 7311, and the connector 733 is located between the upper plate 7311 and the lower plate 7312. By setting the cylinder support 731 above the outer sleeve 721, the piston rod of the cylinder 732 can be aligned downward and coaxially with the tensioning push rod 77, ensuring that the power of the cylinder 732 can be transmitted linearly and unobstructed to the tensioning push rod 77. This solves the problem of the tensioning push rod 77 getting stuck or jammed, ensuring that the palletizing gripper 7 can still smoothly and unobstructedly grasp and release the film roll during long-term operation.

[0041] During palletizing, after the palletizing gripper 7 picks up the film roll and moves it above the pallet 83, the palletizing gripper 7 will descend to a set height driven by the lifter 6, so that the palletizing gripper 7 can place the film roll stably on the pallet 83. However, in reality, the height of the pallet 83 may be inconsistent or the supporting surface of the pallet 83 may be tilted, making it difficult to determine whether the film roll has been stably placed on the pallet 83 or is still suspended in the air. Therefore, the palletizing gripper 7 provided in this embodiment cleverly integrates the cylinder bracket 731, cylinder 732, tensioning push rod 77, and inner sleeve 7 22. The gripping sleeve 723 and the tensioning clamping arm 75 form a floating whole. In addition, a downwardly extending slide rod 761 is fixed at the bottom of the lower plate 7312. The outer sleeve 721 is provided with a guide sleeve 762 to guide the vertical movement of the slide rod 761 and a sensor 763 for detecting the bottom end of the slide rod 761. In the natural state, due to the gravity of the entire floating whole, the cylinder bracket 731 will press down on the top of the outer sleeve 721, so the bottom end of the slide rod 761 is always in the state of triggering the sensor 763. Once the film roll is placed smoothly on the pallet, the lifter 6 will drive the palletizing gripper 7 to continue descending. At this time, since the tensioning clamp arm 75 is in the state of tensioning the film roll, the floating whole will remain stationary. The base 71 and the outer sleeve 721 will continue to descend relative to the floating whole, thereby separating the cylinder bracket 731 and the outer sleeve 721. The sensor 763 on the outer sleeve 721 will also be unable to detect the bottom end of the slide bar 761 due to the descent, and thus send a feedback signal to the control system, indicating that the film roll has been palletized in place, and the lifter 6 can stop driving.

[0042] Preferably, the sliding engagement of the slide bar 761 and the guide sleeve 762 also serves to limit the rotation of the floating assembly relative to the outer sleeve 721 and the base 71. This not only provides circumferential positioning for the floating assembly and prevents it from rotating and affecting the orientation of the membrane roll, but also prevents the bottom end of the slide bar 761 from disconnecting from the triggering of the sensor 763 due to the rotation of the floating assembly.

[0043] The base 71 is also provided with a rotary drive assembly 78 for driving the outer sleeve 721 to rotate. The rotary drive assembly 78 includes a motor bracket 781 fixed on the base 71, a motor 782 set on the motor bracket 781, a drive gear 783 fixed on the output end of the motor 782, and a bearing gear 784 rotatably connected to the base 71. The drive gear 783 meshes with the bearing gear 784 through a transition gear 785. The bearing gear 784 is coaxial with the outer sleeve 721 and the outer sleeve 721 is fixed above the bearing gear 784. When the tensioning gripper arm 75 of the palletizing gripper 7 tightens and grips the film roll, the cylinder support 731 will press down on the outer sleeve 721 due to its own gravity and the gravity of the film roll. When the motor 782 drives the drive gear 783 to rotate, the transmission of the transition gear 785 will drive the bearing gear 784 to rotate, so that the outer sleeve 721, the cylinder support 731, the inner sleeve 722, the gripping sleeve 723 and the film roll will rotate synchronously as a whole, thereby achieving the effect of changing the orientation of the film roll.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] It is understood that those skilled in the art can make equivalent substitutions or changes to the technical solution and inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A vertical stacking device for film rolls, characterized in that, The system includes two symmetrically arranged uprights, a transverse slide that spans the two uprights and is slidably mounted on them, a front-to-back drive assembly for driving the transverse slide forward and backward, a longitudinal slide slidably mounted on the transverse slide, a left-to-right drive assembly for driving the longitudinal slide left and right, a lifter located below the longitudinal slide, and a palletizing gripper that is moved up and down by the lifter. A palletizing area is formed between the two uprights, including two rows of pallet placement areas and an aisle between them. Both the pallet placement areas and the aisle extend laterally. In each row of pallet placement areas... The system includes multiple horizontally spaced pallets. A first safety light curtain detects the presence of items in the near-ground area of ​​the aisle. A palletizing gripper grips the film roll and places it vertically on the pallet. An alarm is mounted on the upright frame. The alarm, first safety light curtain, front and rear drive components, left and right drive components, lifting device, and palletizing gripper are all controlled by a film roll packaging control system. The palletizing gripper includes a base, an outer sleeve mounted on the base, an inner sleeve penetrating the outer sleeve, a gripping sleeve fixedly connected to the bottom end of the inner sleeve, and a gripping sleeve connected to the bottom end of the gripping sleeve. The system includes a connecting plug, a cylinder bracket fixedly connected to the top of the inner sleeve, and a cylinder mounted on the cylinder bracket. The cylinder bracket is located above the outer sleeve. A tensioning push rod is inserted into the inner sleeve and extends into the gripping sleeve. The piston rod end of the cylinder is drivenly connected to the top end of the tensioning push rod. The side wall of the gripping sleeve has at least two clamping arm holes arranged in a circumferential array. The top of the connecting plug is fixed with a clamping arm guide block located inside the gripping sleeve. Each clamping arm hole has a tensioning clamping arm, and each tensioning clamping arm is drivenly connected to the tensioning push rod. The clamping arm extends out of the clamping arm hole or retracts back to the gripping sleeve under the guidance of the clamping arm guide block; the piston rod end of the cylinder extends downward and is connected to the top of the tensioning push rod through a joint, so that the cylinder and the tensioning push rod are coaxial; the cylinder support includes a horizontally arranged upper plate and a lower plate, and a support column connecting the upper plate and the lower plate; the cylinder is located on the top of the upper plate, and the joint is located between the upper plate and the lower plate; a downwardly extending slide rod is fixed at the bottom of the lower plate, and a guide sleeve for guiding the vertical movement of the slide rod and a sensor for detecting the bottom end of the slide rod are provided on the outside of the outer sleeve.

2. The film roll vertical palletizing device according to claim 1, characterized in that, The legs of the two uprights are connected by several longitudinally extending support rods. The generator of the first safety light curtain is set on one of the support rods, and the receiver of the first safety light curtain is set on the support rod adjacent to that support rod.

3. The film roll vertical palletizing device according to claim 2, characterized in that, The support rods are provided in three parts: a front support rod, a middle support rod, and a rear support rod. The area between the front and middle support rods forms the front stacking area, and the area between the rear and middle support rods forms the rear stacking area. The front and middle support rods are equipped with first safety light curtains for detecting aisles in the front stacking area, and the rear and middle support rods are equipped with first safety light curtains for detecting aisles in the rear stacking area.

4. The film roll vertical palletizing device according to claim 1, characterized in that, Each of the support legs of the stand is equipped with a second safety light curtain for detecting whether a pedestrian has entered the palletizing area.

5. The film roll vertical palletizing device according to claim 1, characterized in that, The crossbeam of the upright frame is provided with a first guide rail extending laterally and a first rack located beside the first guide rail. The bottom of the transverse slide is slidably connected to the first guide rail via a first slider. The front and rear drive assembly includes a first reducer set on the transverse slide, a drive shaft driven by the first reducer, a first gear sleeved on the drive shaft, and a bearing seat on the transverse slide to support the drive shaft. The first gear meshes with the first rack for transmission.

6. The film roll vertical palletizing device according to claim 5, characterized in that, The transverse slide is provided with a longitudinally extending second guide rail and a second rack located beside the second guide rail. The bottom of the longitudinal slide is slidably connected to the second guide rail via a second slider. The left and right drive components include a second reducer provided on the longitudinal slide and a second gear provided on the output end of the second reducer. The second rack and the second gear mesh and drive each other.

7. The film roll vertical palletizing device according to claim 6, characterized in that, The lifting device includes a vertical support, a lead screw rotatably mounted on the vertical support, a lead screw nut sleeved on the lead screw, a third guide rail vertically mounted on the vertical support, and a third reducer driven by the lead screw. The lead screw nut is fixedly connected to the palletizing gripper, and the back of the palletizing gripper is connected to the third guide rail via a third slider.

8. The film roll vertical palletizing device according to claim 1, characterized in that, The base is also provided with a rotary drive assembly for driving the outer sleeve to rotate. The rotary drive assembly includes a motor bracket fixed on the base, a motor mounted on the motor bracket, a drive gear fixed on the output end of the motor, and a load-bearing gear rotatably connected to the base. The drive gear meshes with the load-bearing gear through a transition gear. The load-bearing gear is coaxial with the outer sleeve and the outer sleeve is fixed above the load-bearing gear.

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